-2.3% is the change from 652 to 637
Calculation steps:
[( 637 - 652 ) ÷ 652] x 100 = -2.3%
Formula
Percentage change = [(637 - 652) / 652] x 100
Subtract the new number by the original number
637 - 652 = -15
-15 ÷ 652 = -0.023006134969325152
-0.023006134969325152 x 100 = -2.3%